The problem here is you are using the page address, not the image address.
Page address: http://steamcommunity.com/sharedfiles/filedetails/?id=852782290
Image address: http://images.akamai.steamusercontent.com/ugc/82590107437918563/2F28128BCC268337E8BFCD3A75250C975BD5DB92/
You can click on the image on the page, which will take you to the actual image, or you can just right-click the image and hit "Copy image address".